rising. of course, when it gets so cold. but tonight, what to do before you go to bed. devices add to the cost unless you take simple steps and abc s chief business correspondent rebecca jarvis is out to save your money. reporter: tonight, with temperatures dropping, we scoured the country for the top tips to save on those rising bills. first stop, lancaster, ohio, where we found nick anderson recommending these affordable weather proofing kits for your windows. it has a self-adhesive on it so you ll put it on the frame and the excess you ll just cut off with a utility knife or a scissors. reporter: next up, savings pro lizabeth cole, hunkering down in saratoga, new york. unplug those electronics that you re not using. reporter: in fact, just unplugging your laser printer could save you up to $130 a year. if you re not using a room go ahead and close the vents in that room, that way the heat will get to where it needs to go. reporter: and in nutley, new jersey, advice for